# 第一题
a = 100
if a % 7 == 2:
    print(str(a)+"天后是星期五"
# 第二题
second int( input("请输入秒数 second = ") )

minute = second % 3600 // 60

miao = second % 3600 % 60
print(second+"秒等于"+minute+"分钟"+miao+"秒")
#第三题 
a = input("摄氏度？")
b = ((a)*9/5 + 32)
print(a+"摄氏度是"b+"华氏度")
#第四题
while True
    score = int ("分数：")
    if score > 90:
        print("分数：","A")
        score = int ("分数：")
    if score < 90 >80:
        print("分数：","B")
        score = int ("分数：")
    if score < 80 >70:
        print("分数：","C")
        score = int ("分数：")
    if score < 70 >60:
        print("分数：","D")
        score = int ("分数：")
    if score < 60:
        print("分数：","F")
    

#第五题
year = int(input("请输入一个年份"))
if      year % 400 = = 0 or year % 4 = = 0 and year % 100 = 0
    print ("闰年")
else:
    print ("平年")


#第六题
a = int(input("请输入一个数字"))
if      a % 2 = = 1
    print(奇数)
else:
    print(偶数)

#第七题
a = int(input("请输入一个数字"))
if      a < 6
    print(工作日)
else:
    a = 6 or a = 7
    print(周末)
else:
    print(错误的数字)

#第八题
x = list(range(100))
for i in x :
    x.remove(i+1)
else:
    print("delete over")
print(end=10)
print(x)

#第九题
for x range(1,101):
    sum = sum + x
print(sum)

#第十题
n,sum=0,0for shu in range(1,6):    for n in range(1,6):                
 shu=int(input("请输入第"+str(n)+"个整数："))        
 sum=sum+shu    
 print(sum)    
 break
